<html>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ page import="java.util.*" %>
<head>
    <meta charset="UTF-8">
    <meta name="viewport"
          content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>
<body>
   <%double r=3,a=2,b=5,c=5;%>
    <br>加载circle.jsp计算半径为<%=r%>的圆的面积:
    <jsp:include page="circle.jsp">
        <jsp:param value="<%=r%>" name="sideR/"></jsp:param>
    </jsp:include>
<p>--------------------------------</p>
<br>加载ladder.jsp计算上底下底高为<%=a%>,<%=b%>,<%=c%>的梯形面积
<jsp:include page="labber.jsp">
<jsp:param value="<%=a%>" name="sideA"/>
<jsp:param value="<%=b%>" name="sideB"/>
<jsp:param value="<%=c%>" name="sideC"/>
</jsp:include>>

</body>
</html>